Results 271 to 280 of about 132,518 (295)

The 2007 Age-Structured Production Model assessments and projections for the South Coast rock lobster resource-routine update using model fitting to catch-at-age data

2007
The assessment conducted in 2006 (WG/06/06/WCRL3) has been routinely extended, taking account of a further year’s catch, CPUE and catch-at-age data. The observed CPUE shows a slight decrease for 2005 (2005/06 season). The sustainable yield estimates are generally very similar to those for the 2006 assessment, although estimates of current biomass ...
Johnston, Susan J, Butterworth, Doug S
openaire   +1 more source

The Age-Structured Production Model for the South Coast rock lobster population extended to be sex- and area-specific and to fit to catch-at-length data

2007
The south coast rock lobster resource is modelled using an age-structured-productionmodel (ASPM) which fits to catch-at-length data directly. The model is sexdisaggregated (m/f) and area-disaggregated (A=1,2,3).
Johnston, Susan J, Butterworth, Doug S
openaire   +1 more source

A Stochastic Implementation of an Age-Structured Production Model

1998
VR Restrepo, CM Legault
openaire   +1 more source

Stability in distribution for age‐structured HIV model with delay and driven by Ornstein–Uhlenbeck process

Studies in Applied Mathematics, 2021
Wenjuan Guo, Ming Ye, Qimin Zhang
exaly  

The Age-Structured Production Model for the South Coast rock lobster population extended to be sex- and area-specific, to fit to catch-at-length data, and to use Pope's approximation

2008
The south coast rock lobster resource is modelled using an age-structured-productionmodel (ASPM) which fits to catch-at-length data directly. The model is sexdisaggregated (m/f) and area-disaggregated (A=1,2,3). Population equations have been modified from Baranov equations to Pope’s approximation.
Johnston, Susan J, Butterworth, Doug S
openaire   +1 more source

The 2007 age-structured production model assessments and projections for the South Coast rock lobster resource-routine update using Pope's approximation model fitting to catch-at-age data including scenarios for time-varying selectivity

2007
The assessment conducted in 2006 (WG/06/06/WCRL3) has been routinely extended (except that the Baranov equation has been replaced by Pope’s approximation), taking account of a further year’s catch, CPUE and catch-at-age data. The observed CPUE shows a slight decrease for 2005 (2005/06 season).
Johnston, Susan J, Butterworth, Doug S
openaire   +1 more source

Stock assessment of Namibian orange roughy populations using an age-structured production model and all available indices of abundance from 1994 to 2002, and making allowance for annually variable aggregation of the stocks

2003
Updated assessments of the four orange roughy aggregations off Namibia, based upon a maximum penalised likelihood approach which uses all available indices of abundance, are presented, and projections under constant catch levels reported. Earlier methodology is extended to reflect the proportion of a stock present at the fishing aggregation each year ...
Brandão, Anabela, Butterworth, Doug S
openaire   +1 more source

Optimal control of a discrete age-structured model for tuberculosis transmission

Heliyon, 2020
Hengki Tasman
exaly  

Traveling wave solutions for a diffusive age-structured SIR epidemic model

Communications in Nonlinear Science and Numerical Simulation, 2021
Shi-Liang Wu, Cheng-Hsiung Hsu
exaly  

An age‐ and length‐structured statistical catch‐at‐length model for hard‐to‐age fisheries stocks

Fish and Fisheries, 2022
ＦＡＮ ｚｈａｎｇ, Noel G Cadigan   +1 more
exaly